Organic field-effect transistors based on two phenylene-thiophene oligomer derivatives with a biphenyl or fluorene core

被引：15

作者：

Duan, Zongfan ^{[1
,2
]}

Hu, Dengwei ^{[3
]}

Ohuchi, Hirokuni ^{[1
]}

Zhao, Maiqun ^{[2
]}

Zhao, Gaoyang ^{[2
]}

Nishioka, Yasushiro ^{[1
]}

机构：

[1] Nihon Univ, Coll Sci & Technol, Funabashi, Chiba 2748501, Japan

[2] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China

[3] Baoji Univ Arts & Sci, Dept Chem & Chem Engn, Baoji 721013, Shaanxi, Peoples R China

来源：

SYNTHETIC METALS | 2012年 / 162卷 / 13-14期

关键词：

Organic semiconductor; Organic field-effect transistor; Oligomers; THIN-FILM TRANSISTORS; SEMICONDUCTING MATERIALS; PERFORMANCE; CRYSTALS;

D O I：

10.1016/j.synthmet.2012.05.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis and full characterization are described of two phenylene-thiophene oligomer derivatives, 2,7-bis[5-(4-n-hexylphenyl)-2-thienyl]fluorene (HPTFTPH) and 4,4'-bis[5-(4-n-hexylphenyl)-2-thienyl]biphenyl (HPTPPTPH), which are based on a structural combination of a fluorene or biphenyl core, thienyl units, and end-cap hexylphenyl groups. Remarkable shifts in the UV-vis and photoluminescence spectra of thin films relative to their solutions indicate the existence of strong intermolecular pi-pi interactions in the solid state of the two oligomers. In addition, relatively large energy gaps and low highest occupied molecular orbital energy levels imply that the two oligomers are promising and durable semiconducting materials. Thin-film organic field-effect transistor devices based on the two oligomers show good p-type performances with high hole mobilities. The highest mobility (0.20 cm(2)/Vs) was obtained for the HPTPPTPH oligomer with biphenyl core. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：1292 / 1298

页数：7

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